<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>table</title>
</head>
<body>
<!--
    table
    行列合并
    表格嵌套
-->
<table border="1" width="900">
    <tr>
        <td width="100">1-0</td>
        <td colspan="3">1-1</td>
        <td rowspan="2">1-4</td>
    </tr>
    <tr>
        <td colspan="4">
            <table width="100%" border="1">
                <tr>
                    <td>2-1</td>
                    <td>2-2</td>
                </tr>
            </table>
        </td>

    </tr>
</table>
</body>
</html>